URLs listed in this category:
Encyclopedia Mythica
Online encyclopedia of mythology and folklore from around the world. Includes definitions and images of many heroes, legendary creatures, gods and goddesses, and related news articles.
http://www.pantheon.org/
Godchecker
Guide to gods and mythology of the world, with a twist. Searchable directory of thousands of deities, sorted by pantheon.
http://www.godchecker.com/
Gods, Heros, and Myth
Dedicated to exploring Greek, Roman, Celtic, Egyptian, Native American, Japanese, Chinese, and Babylonian mythology.
http://www.gods-heros-myth.com/